Abstract: A thin film resistor is provided, and a resistance layer of the thin film resistor is a patternized mesh. The mesh density of the mesh resistance layer increases from center to both ends of the film resistor. The temperature peak is shifted from the center to both ends of the film resistor. Therefore, the heat can be quickly dissipated via the electrodes.

Abstract: A foldable table for steering wheel with features and devices that include: a table angle control (9), a springing strip (31), a limit stopper (32) and reinforcing rib (34) on the support (3) to restrict the foldable table not to fall apart in fold-up position for easy carrying and storage; different ways of easily and rigidly mounting the foldable table on a steering wheel which can be removed just as easily as mounting; and a oblong slot on the surface of the foldable table for storage of pens, utensils, etc.

Abstract: A foldable table for steering wheel with features and devices that include: a table angle control (9), a springing strip (31), a limit stopper (32) and reinforcing rib (34) on the support (3) to restrict the foldable table not to fall apart in fold-up position for easy carrying and storage; different ways of easily and rigidly mounting the foldable table on a steering wheel which can be removed just as easily as mounting; and a oblong slot on the surface of the foldable table for storage of pens, utensils, etc.

Abstract: A foldable and surface angle adjustable table device mountable upon a steering wheel, the device including an arch shape support (3) with clamp(s) on it, and a flat table surface (1) pivotally connected to each other. A pair of table angle controls (9) is at the bottom of the table at each side. At each side of the support, there is a corresponding angle-adjusting wheel (11) with a flange plate (12) to change the angle of the table angle control, which in turn changes the angle of the table surface. This device can be easily mounted on and removed from a steering wheel by clamp, and can be folded into a compact unit for carrying or storage.